William a



(No Model.)

W. A. PHILLIPS.

ELECTRIC CONDUCTOR. No. 434,885. Patented Aug. 19,1890.

UNITED STATES PATENT O FICE.

WILLIAM A. PHILLIPS, OF SCHENEOTADY, YORK, ASSIGNOR TO THE EDISON MACHINE WVORKS, OF SAME PLACE.

ELECTRIC CONDUCTOR. I i

SPECIFICATION forming part of Letters Patent No. 434,885, dated August 19, 1890.

Application filed March 25, 1889. Serial N0. 304,723- (No model.)

T all whom it may concern: wire, or any suitable covering or binding Beit known that 1, WILLIAM A. PHILLIPS, may be applied to the paper if necessary.

a subject of the Queen of Great Britain, re- The insulated wire is then as shown in Figs. siding at Schenectady, in the county of 1, 2, and 3, consisting of the wire A, and the 55 Schenectady and State of New York, have mass of compressed and folded paper strips invented a certain new and useful Improve- B, massed closely around said wire, and the ment in Electrical Conductors, of which the binding D. The binding may, however, in

followingis a specification. some-cases be omitted, and the wire is so The 0b, ect of my invention is to effectively shown in Fig. 2. 60 IO insulate wires used for electrical purposes; Wires insulated as above described are and my invention especially relates to wires especially useful for the manufacture of Whose insulating-covering is impregnated cables made up of a number of wires massed with a liquid insulating compound which together and insulated by a compound aphardens when cooled, although the improved plied in a liquid state and which hardens 65 r 5 insulation which mainly constitutes my inwhile cooling. Such a cable is illustrated in vention may be employed without such in- Fig. at, the wires A covered with the paper sulating compound. insulation B being surrounded and separated The main feature of my invent-ion consists from each other by the insulating compound in the use for insulating a wire of insulating- E. The wires may of course be used with 70 2o strips applied longitudinally and parallel to any kind of cable besides that illustrated in said wire. I find that this mode of applying Fig. 4, or be used separately for various elecinsulation has many advantages over the trical purposes. spiral winding of insulating'strips which has I may provide the strips with adhesive maheretofore been customary. It is more easy terial for stickingthem together, so that when 75 of application, it furnishes a very efiective the wire is cut into lengths the ends of the insulation, and when fibrous material, such strips will not be liable to become separated. as paper, is so applied it is found that it ab- Such adhesive material is preferably applied sorbs the liquid insulating compound much by coating one or more of the strips with it more readily than spiral-wound strips. before passing the wire through the die. 80 My invention is illustrated in the accom- Such material in the passage through the die panying drawings. becomes placed upon all the strips so as to Figure 1 illustrates the process of applystick them together. I find that a compound ing the insulating material. Fig. 2 is a lon-- of rosin and Vaseline is a particularly effective gitudinal section of insulating material apmaterial for this purpose. plied to the wire in the manner which con- Vhat I claim isstitutes my invention; Fig. 3, an end view 1. The combination, with a wire, of flat of the same, and Fig. i a sectional view of a strips of absorbent insulating material apcable made up of wires insulated according plied longitudinally to said wire, the strips to my invention. being individually in a folded condition, sub- 0 40 I take a wire A and lay upon it longitudstantially as set forth.

inally a number of strips of paper B, or other 2. The combination, with a wire, of flat suitable insulating material, preferably of strips of paperapplied longitudinally to said fibrous material, and I draw such wire, with wire, the strips beingindividually in a folded the strips surrounding it, through a conecondition, substantially as set forth. 5 shaped die 0, by means of which the strips 3. The combination, with a wire, of an inare tightly folded and compressed around sulation therefor composed of two or more the wire, forming a solid and compact mass strips of fibrous material applied longitudof paper, which forms an effective insulation inally to the wire and impregnated with an for the wire. I prefer to wrap the paper covinsulating compound or material, substan- I00 ering with a binding of thread or cord D for tially as set forth.

holding the paper strips together upon. the 4. The combination, with a Wire, of an insulation therefor composed of two or more strips of an insulating material applied longitudinally to said wire and folded and compressed thereon, substantially as set forth.

5. The combination, with a Wire, of an insulation therefor composed of two or more strips of fibrous material applied longitudinally to such Wire and provided with adhesive material for holding them together, substantially as set forth.

6. The combination, with a Wire, of an insulation therefor composed of two or more strips of fibrous material applied longitudinally to the wire and provided with an adhesive compound of rosin and Vaseline for holding them together, substantially as set forth.

This specification signed and witnessed this 18th day of March, 1889.

YVILLIAM A. PHILLIPS.

Witnesses:

D. OADY SMITH, EVERETT SMITH. 

